Update apcu.ini

rpmbuild/SOURCES/apcu.ini

@@ -1,63 +1,89 @@
 ; Enable APCu extension module
 extension = apcu.so
 
-;	This can be set to 0 to disable APCu
-apc.enabled=1
-
-;	Setting this enables APCu for the CLI version of PHP
-;	(Mostly for testing and debugging).
-;apc.enable_cli=0
-
-;	Sets the path to text files containing caches to load from disk upon
-;	initialization of APCu. preload_path should be a directory where each
-;	file follows $key.data where $key should be used as the entry name
-;	and the contents of the file contains serialized data to use as the value
-;	of the entry.
-;apc.preload_path=
-
-;	The size of each shared memory segment, with M/G suffixe
-;apc.shm_size=32M
-
-;	The number of seconds a cache entry is allowed to idle in a slot in case
-;	this cache entry slot is needed by another entry.
-;apc.ttl=0
-
-;	The number of seconds that a cache entry may remain on the
-;	garbage-collection list.
-;apc.gc_ttl=3600
-
-;	If you begin to get low on resources, an expunge of the cache
-;	is performed if it is less than half full. This is not always
-;	a suitable way of determining if an expunge of the cache
-;	should be per apc.smart allows you to set a runtime configuration
-;	value which	is used to determine if an expunge should be run
-;	if (available_size < apc.smart * requested_size)
-;apc.smart=0
-
-;	A "hint" about the number variables expected in the cache.
-;	Set to zero or omit if you are not sure;
-;apc.entries_hint=4096
-
-;	The mktemp-style file_mask to pass to the mmap module
-apc.mmap_file_mask=/tmp/apc.XXXXXX
-
-;	On very busy servers whenever you start the server or
-;	modify files you can create a race of many processes
-;	all trying to cache the same data at the same time.
-;	By default, APCu attempts to prevent "slamming" of a key.
-;	A key is considered "slammed" if it was the last key set,
-;	and a context other than the current one set it ( ie. it
-;	was set by another process or thread )
-;apc.slam_defense=1
-
-;	Defines which serializer should be used
-;	Default is the standard PHP serializer.
-;apc.serializer='default'
-
-;	use the SAPI request start time for TTL
-;apc.use_request_time=1
-
-;	Enables APCu handling of signals, such as SIGSEGV, that write core files
-;	when signaled. APCu will attempt to unmap the shared memory segment in
-;	order to exclude it from the core file
-;apc.coredump_unmap=0
+; apc.enabled can be set to 0 to disable APC. This is primarily useful when
+; APC is statically compiled into PHP, since there is no other way to disable it
+; (when compiled as a DSO, the extension line in php.ini can just be
+; commented-out).
+apc.enabled = 1
+
+; The number of shared memory segments to allocate for the compiler cache. If
+; APC is running out of shared memory but apc.shm_size is set as high as the
+; system allows, raising this value might prevent APC from exhausting its
+; memory.
+;apc.shm_segments = 1
+
+; The size of each shared memory segment given by a shorthand notation as
+; described in this FAQ. By default, some systems (including most BSD variants)
+; have very low limits on the size of a shared memory segment.
+;apc.shm_size = 32M
+
+; A "hint" about the number of distinct variables that might be stored. Set to
+; zero or omit if not sure.
+;apc.entries_hint = 4096
+
+; Consider cache entries without an explicit TTL to be expired if they have
+; not been accessed in this many seconds. Effectively, this allows such entries
+; to be removed opportunistically during a cache insert, or prior to a full
+; expunge. Note that because removal is opportunistic, entries can still be
+; readable even if they are older than apc.ttl seconds. This setting has no
+; effect on cache entries that have an explicit TTL specified.
+;apc.ttl = 0
+
+; The number of seconds that a cache entry may remain on the
+; garbage-collection list. This value provides a fail-safe in the event that a
+; server process dies while executing a cached source file; if that source file
+; is modified, the memory allocated for the old version will not be reclaimed
+; until this TTL reached. Set to zero to disable this feature.
+;apc.gc_ttl = 3600
+
+; If compiled with MMAP support by using --enable-mmap this is the
+; mktemp-style file_mask to pass to the mmap module for determining whether your
+; mmap'ed memory region is going to be file-backed or shared memory backed. For
+; straight file-backed mmap, set it to something like /tmp/apc.XXXXXX (exactly 6
+; Xs). To use POSIX-style shm_open/mmap put a .shm somewhere in your mask. e.g.
+; /apc.shm.XXXXXX You can also set it to /dev/zero to use your kernel's
+; /dev/zero interface to anonymous mmap'ed memory. Leaving it undefined will
+; force an anonymous mmap.
+apc.mmap_file_mask = /tmp/apc.XXXXXX
+
+; On very busy servers whenever you start the server or modify files you can
+; create a race of many processes all trying to cache the same file at the same
+; time. This option sets the percentage of processes that will skip trying to
+; cache an uncached file. Or think of it as the probability of a single process
+; to skip caching. For example, setting apc.slam_defense to 75 would mean that
+; there is a 75% chance that the process will not cache an uncached file. So,
+; the higher the setting the greater the defense against cache slams. Setting
+; this to 0 disables this feature.
+;apc.slam_defense = 1
+
+; Mostly for testing and debugging. Setting this enables APC for the CLI
+; version of PHP. Under normal circumstances, it is not ideal to create,
+; populate and destroy the APC cache on every CLI request, but for various test
+; scenarios it is useful to be able to enable APC for the CLI version of PHP
+; easily.
+;apc.enable_cli = 0
+
+; Enables APC handling of signals, such as SIGSEGV, that write core files when
+; signaled. When these signals are received, APC will attempt to unmap the
+; shared memory segment in order to exclude it from the core file. This setting
+; may improve system stability when fatal signals are received and a large APC
+; shared memory segment is configured.
+;
+; Warning:
+; This feature is potentially dangerous. Unmapping the shared memory segment
+; in a fatal signal handler may cause undefined behaviour if a fatal error
+; occurs.
+;
+; Note:
+; Although some kernels may provide a facility to ignore various types of
+; shared memory when generating a core dump file, these implementations may also
+; ignore important shared memory segments such as the Apache scoreboard.
+;apc.serializer = php
+
+; Optionally, set a path to the directory that APC will load cache data at
+; startup.
+;apc.preload_path =
+
+; Use the SAPI request start time for TTL.
+;apc.use_request_time = 0